This question already has an answer here:
In a recent episode of "Pawn Stars" (an American based program about a specific pawn shop in Las Vegas), someone brought in the Fender that he claimed belonged to the great Jimmy Hendrix himself. The very reputable expert who came out to check the guitar stated that Jimmy actually physically bend his guitar.
On my Ibanez G10 I can recreate that by applying a forward force on the neck, it basically gives you same effect as depressing the whammy bar. I would like to think that Jimmy used this neck bending technique for bardives as he was left handed playing on an upside down right-handed guitar on which he modified his whammy bar to avoid it from catching his left hand and arm when playing.
My question is, does this technique of actually bending a guitar good or bad for the guitar and what implications are there involved. I know that the use of whammy bars can detune guitars, and I would think the same is true for this guitar bending technique, so apart from detuning possibilities, does this technique hurt the guitar in the long run